Primitive groove

Primitive groove
Surface view of embryo of Hylobates concolor. The amnion has been opened to expose the embryonic disk.
Details
Carnegie stage9
Identifiers
Latinsulcus primitivus
Anatomical terminology

The primitive groove is a feature present during prenatal development. It is a shallow groove that appears on the surface of the primitive streak.[1][2] It is created by infolding of epiblastic cells.[1][2] Its anterior end communicates with the yolk-sac by means of the blastophore (an aperture).

References

Public domain This article incorporates text in the public domain from page 47 of the 20th edition of Gray's Anatomy (1918)

  1. 1 2 Moore, Keith L.; Persaud, T. V. N.; Torchia, Mark G. (2018). "4 - Third Week of Human Development". The Developing Human (11th ed.). Saunders. pp. 47–63. ISBN 9780323611541.
  2. 1 2 Standring, Susan (2020). "10 - Cell populations at gastrulation". Gray's Anatomy (42nd ed.). Elsevier. pp. 188–195. ISBN 9780702077050.
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